Home / 922,245.60-1,383,562.80-389,492.40

Finding the Fourth Proportional to 922,245.60, 1,383,562.80 and 389,492.40

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Solution

The fourth proportional to 922,245.60, 1,383,562.80 and 389,492.40 is: 584,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,245.60 : 1,383,562.80 = 389,492.40 : x
  2. Step 2: Convert to fraction form
    922,245.60/1,383,562.80 = 389,492.40/x
  3. Step 3: Cross multiply
    922,245.60x = 1,383,562.80 × 389,492.40
  4. Step 4: Simplify right side
    922,245.60x = 538,887,195,522.72
  5. Step 5: Solve for x
    x = 538,887,195,522.72/922,245.60
  6. Step 6: Final answer
    x = 584,320.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.